IEC 60404-8-4:2013
Magnetic materials - Part 8-4: Specifications for individual materials - Cold-rolled non-oriented electrical steel strip and sheet delivered in the fully-processed state
发布时间：2013-05-14 实施时间：


IEC 60404-8-4:2013 标准规定了非取向电工钢带和板材的规范要求，这些钢带和板材在全加工状态下交付。本标准适用于冷轧非取向电工钢带和板材，其厚度为0.10 mm至6.50 mm，用于制造电机、变压器和其他电气设备的核心。

本标准规定了非取向电工钢带和板材的化学成分、磁性能、物理性能、表面质量、尺寸和公差、包装和标记等方面的要求。其中，化学成分包括硅、铝、钙、锰、磷、硫等元素的含量；磁性能包括磁通密度、磁化强度、铁损耗等指标；物理性能包括密度、电阻率、热膨胀系数等指标；表面质量包括表面状态、氧化皮、划痕、凹凸等指标；尺寸和公差包括厚度、宽度、长度、平直度、弯曲度等指标；包装和标记包括包装方式、标记内容等指标。

本标准的实施有助于保证非取向电工钢带和板材的质量稳定，提高电机、变压器和其他电气设备的性能和可靠性，促进电力工业的发展。

相关标准
- IEC 60404-1:2016 Magnetic materials - Part 1: Classification
- IEC 60404-2:2013 Magnetic materials - Part 2: Methods of measurement of the magnetic properties of electrical steel sheet and strip by means of an Epstein frame
- IEC 60404-3:2015 Magnetic materials - Part 3: Methods of measurement of the magnetic properties of magnetic sheet and strip by means of a single sheet tester
- IEC 60404-4:2015 Magnetic materials - Part 4: Methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 200 kHz by the use of ring specimens
- IEC 60404-5:2015 Magnetic materials - Part 5: Methods of measurement of the magnetic properties of permanent magnet materials